Bruno Mars

Ariana Grande and Nicki Minaj

The Chainsmokers and Halsey

Fifth Harmony

Green Day

James Bay

John Legend

Lady Gaga

Maroon 5 and Kendrick Lamar

Niall Horan

Shawn Mendes

Sting

The Weeknd

Twenty One Pilots

The four-time Grammy winner opens the show on Sunday night. He won his first AMA in 2011 for Favorite Pop/Rock Male Artist, and has since received six additional nominations. His newest album, “24K Magic,” will be released on November 18.

Grande, who won New Artist of the Year in 2013 and Favorite Pop/Rock Female Artist last year, teams up with Minaj, herself a six-time winner at the AMAs. The two recently collaborated on “Side to Side,” a top-10 hit from Grande’s most recent album, “Dangerous Woman.”

The Chainsmokers are nominated for four awards this year, including New Artist of the Year. They could have an advantage considering that “Closer,” their collaboration with Halsey, has been number-one on the Billboard Hot 100 singles chart for the last 12 weeks.

The girl group and former “X-Factor” contestants are American Music Award nominees for Collaboration of the Year for their top-five hit “Work From Home” with rapper Ty Dolla Sign.

The Bay Area-based rock trio has three AMAs out of 11 nominations, winning their most recent award in 2009: Favorite Alternative Rock Artist. The band was inducted into the Rock and Roll Hall of Fame in 2015.

The English singer-songwriter had a top-10 hit in 2014 with “Let It Go,” and was nominated for three Grammy Awards earlier this year, including Best New Artist. But he has yet to break through at the American Music Awards.

Legend is performing at the AMAs for the first time ever, and is also a nominee for Collaboration of the Year for “Like I’m Gonna Lose You,” his duet with Meghan Trainor. Legend has five previous nominations, winning for Favorite Soul/R&B Artist in 2014.

The six-time Grammy-winning musician and Golden Globe-winning actress has received nine nominations at the AMAs, winning just once in 2010 for Favorite Pop/Rock Female Artist. She will perform for an even larger audience this coming February when she headlines the Super Bowl Halftime Show.

The popular Pop/Rock band has three AMAs out of 10 nominations. They are paired with critically-acclaimed rapper Lamar, who has seven Grammy Awards but has yet to win his first trophy at the AMAs.

As a member of One Direction, Horan has won seven AMAs to date, including two consecutive trophies for Artist of the Year (2014-2015). This year he will be performing his first solo hit, “This Town.” Horan is the first member of One Direction to release solo material since the band announced its official hiatus earlier this year, but before that Zayn Malik left the band in 2015 to strike out on his own and has earned a 2016 AMA nomination for New Artist of the Year.

The Canadian singer-songwriter had a top-five hit with “Stitches” in 2015, and is currently in the top-10 with “Treat You Better.” The 18-year-old singer, who began his career posting song covers on various social media platforms, is nominated for New Artist of the Year.

The 16-time Grammy winner has yet to win a competitive race at the AMAs. But the legendary singer-songwriter is being honored with the Award of Merit, given to artists who have made “exceptional contributions to the music industry.” Previous recipients include Garth Brooks, Michael Jackson, Frank Sinatra, and Paul McCartney. The award was last presented in 2008 to Annie Lennox.

The popular singer and producer won two awards last year: Favorite Soul/R&B Male Artist and Soul/R&B Album for his 2015 release, “Beauty Behind the Madness.” This year he is nominated for Favorite Male Artist in both the Pop/Rock and Soul/R&B genres.

The two-man band has been on a roll this year with three top-10 hits, including their current hit, “Heathens,” a track off the “Suicide Squad” soundtrack. This year they are nominated for two awards: Favorite Pop/Rock Duo or Group and Favorite Alternative Artist.